I swear the result is better than a car wash
I discovered a few years ago that I can get one of the best car washes – essentially free – if I use rain water. Each time it rains, the slightly acid rain water cuts through all of the dirt, dust and road stuff, but if left to dry, it could, and usually does leave some spots. After the rain stops and before the rain drops dry I wipe the car down with Lucas’ Slick Mist using a Microfiber Towel. No soap and no city water, just the residual rain water that is left after a good rain. I swear the result is better than a car wash. No soap scum. The instant wax does a great job.